This document is an instructional module package prepared in objective form for use by an instructor familiar with the acid-base titrimetric procedure for determining the hydroxide, carbonate and bicarbonate alkalinity of a water sample. Included are objectives, an instructor guide, student handouts and transparency masters. A video tape is also available from the author. This module considers use of the pH meter, preparation and standardization of reagents, titration and calculation of results. (Author/RH)